Hyrbrid Inverter and generator to run AC?
I’m looking for inputs from those using hybrid inverters, especially in conjunction with generators to run high load devices like the AC. I currently have 600 watts of solar on the roof of my 5er, wit...
Forum Discussion
My 15k BTU Coleman pulls about 1600w continuous according to my Magnum which varies by outdoor temperature. According to Coleman docs it can pull up to 1900w in 115 outdoor temps.
However its startup surge is up 61 amps! This is well beyond the Magnum's surge capability. Before the Easystart it would start the A/C most of the time but complain with a overload fault recorded, just like the Wynn's video, sometimes it would shutdown.
Another problem was the Magnum is very sensitive to voltage sags, if voltage drops below its VAC dropout for just 16ms (one cycle) it disconnects shore. Even when set to 60V for dropout sometimes the A/C start would trip to dropout causing the Magnum to try and start the A/C by itself even when connected to shore/generator.
The Micro-air lowered start up surge below 30 amps, it also waits a few seconds to start compressor so blower fan and compressor are staggered. Also if it sees a stall it shuts down compressor for 5 minutes. I have seen it do this when accidentally shutting down generator with A/C running, the Magnum tries to takeover but the compressor has already started to stall, the Easystart shuts down compressor and just the blower is running off inverter, although it does record an overload, without Easystart it would just shutdown the Magnum after fighting the compressor stall for a few seconds.
The Easystart is a great product and IMO should be factory installed by all RV A/C's to allow more flexible inverter and generators setups and make things easier on all equipment involved. I would imagine its much easier on the compressor to soft start as well.
However its startup surge is up 61 amps! This is well beyond the Magnum's surge capability. Before the Easystart it would start the A/C most of the time but complain with a overload fault recorded, just like the Wynn's video, sometimes it would shutdown.
Another problem was the Magnum is very sensitive to voltage sags, if voltage drops below its VAC dropout for just 16ms (one cycle) it disconnects shore. Even when set to 60V for dropout sometimes the A/C start would trip to dropout causing the Magnum to try and start the A/C by itself even when connected to shore/generator.
The Micro-air lowered start up surge below 30 amps, it also waits a few seconds to start compressor so blower fan and compressor are staggered. Also if it sees a stall it shuts down compressor for 5 minutes. I have seen it do this when accidentally shutting down generator with A/C running, the Magnum tries to takeover but the compressor has already started to stall, the Easystart shuts down compressor and just the blower is running off inverter, although it does record an overload, without Easystart it would just shutdown the Magnum after fighting the compressor stall for a few seconds.
The Easystart is a great product and IMO should be factory installed by all RV A/C's to allow more flexible inverter and generators setups and make things easier on all equipment involved. I would imagine its much easier on the compressor to soft start as well.
